What is the function of the laser printer's memory? What should I do if black spots appear on my laser printer?

A printer is a machine that prints electronic images and texts onto paper media, which brings great convenience and efficiency to our lives, reduces the cost of acquiring knowledge, and is highly practical. Today we share with you some small issues about daily use of laser printers, such as: What is the role of the memory of a laser printer, what to do if black spots appear on a laser printer, and wish you a happy life!

Contents of this article

1. What is the function of the memory in a laser printer?

2. What to do if black spots appear on laser printer

3. What are the working steps of a laser printer?

What is the role of memory in laser printers?

1. The function of the memory in the printer is to temporarily store the print file data transmitted from the computer host. Because the computer transmits file data to the printer quickly, while the printer prints much slower, printing cannot be completed all at once, but requires a process. In this process, a place is needed to temporarily store data. Therefore, a memory is set up in the printer to store file data and play a buffering role.

2. During printing, the computer first transfers the data to the printer memory, and then the printer starts printing. If the file is too large, it will be transferred and printed again, until it is completed. The size of the memory determines the amount of data that can be stored. The larger the memory, the more data can be stored, and the faster the printing speed.

What to do if black spots appear on laser printer

The causes of black spots in laser printers vary, and the solutions are also different.

They can be roughly divided into the following categories:

1. Regular black spots appear, for example, there is a black spot at the same position at a certain distance on an A4 paper. This phenomenon is caused by the drum core sticking to powder or being scratched by a hard object.

The solution is to replace the drum core or gently wipe the drum core with a paper towel. If it can be wiped off, you can still use it.

2. Black spots of dry shells appear on the paper, which can be scraped off with fingernails. This is a problem with the fixing assembly. Generally, the hot roller of the fixing assembly will have residual toner stuck on it due to long-term heating. These residual toners stick to the paper due to long-term use, resulting in black spots or black spots of dry shells.

The solution is to remove the fuser and clean the toner stuck on the hot roller, or wipe it with a paper towel dipped in xylene solution. If there is no xylene, you can also gently scrape it with your fingernails, wet cloth or even a screwdriver.

3. Large black spots appear. If you observe carefully, you will find that the black spots are surrounded by gray background, and the center of some black spots is actually white. This means that the toner in the toner bin is used up or the wrong toner is added.

The solution is to clear the inventory and then add powder.

What are the working steps of a laser printer?

The working steps of a laser printer are as follows:

1. The printer drives the laser to scan the photosensitive rotating drum in a certain way. The drum rotates one circle, and the printer prints one line.

2. The toner cartridge uses carbon powder to absorb the carbon powder onto the sensitive area.

3. The toner cartridge moves to contact the printing paper, attaching the toner to the paper.

4. Use the heating component to fuse the toner onto the printing paper.

Laser printer: a printing output device that combines laser scanning technology and electronic photography technology.